Determine whether the events are mutually exclusive. Then find the probability. Round to the nearest tenth of a percent, if necessary. 1. GAME spinning a 3 or an odd number on a spinner with 8 equally-sized sections, numbered 1-8.

2. GRAB BAG From a grab bag, a birthday child gets to randomly pick one of twenty envelopes, 10 of which contain toy store discount coupons, 8 of which contain gift cards, and 2 of which contain cash. What is the probability a birthday child selects a gift card or cash?

3. If randomly selecting one item from a drawer that contains 4 red socks, 2 black socks, 2 white socks . Find the probability of getting an item that is white or black.

Please help, i have very limited time, it would be very appreciated if you answered the 3 questions. Thank you!

answer set (b) 0.5, 3/4 80% is in order from least to greatest.  

step-by-step explanation:

in order to compare rational numbers to each other, it is much easier if they are in the same form.   typically, the best form in which to evaluate rational numbers is in decimals.   in order to convert a percent to a decimal, you would divide the given percentage by 100.   you can also accomplish the conversion by moving the decimal point over two places to the left.   for example, the decimal value of 80% is 80/100, or 0.8.   in order to convert a fraction to a decimal, you need to divide the numerator by the denominator.   for example, 3/4 is 0.75.   so, for choice (b) 0.5 3/4 (0.75), 80% (0.8) is the only choice in which the numbers are in order from least to greatest.  

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